Coin-prepayment substation-telephone.



A-MMQQW G. W. LORIMER.

- GOIN PRBPAYMBNT SUBSTATION TELEPHONE.

APPLIOATIONPILED APR. 30, 1908. BENEWBD JULY 101,19125.

`Patented Dec. 17, 1912.

' 3 SHEETS-SHEET 1.

G. W. LORIMER.

GOIN P'REAYMBNT SUBSTATION TELEPHONE. APPLIOATION FILED umso, 1906.. RENBWED JULY 1o, 1912.

. A ,G.. W. LORIMBR. COIN PRBPAYMENT SUBSTATIfON TELEPHONE., APPLIOATION FILED Mimol 190e. RBNEWBD JUIY 1o, 1912. 1,047,567',- Patented B60111912.

3 SHEETS-SHEET s.

' diam@ S 'ventionalview. Sof the ci uisuTED GEORGE W. .LOBIIMER,

WESTERN EL COIN I Specification of Letters Patent.

To all 'whom t may concern:

Be it known that I, GEORGE W. LomMEu, a citizen of the United States of America, anda resident of Piqua, county of`M1aini,

5 and State of Ohio, have useful Improvement invented a new an in Coin-Prepayment-` substation-Telephones, of wliichrthe followy ing is a specification.

' My invention relates to coin collectors for. 1o telephonefsubstations, and has for its olnect,i in a coin-prepayment system of charging vfor telephone service,-

Wheieby a telephone patron 'may xto provide means be per- .mitted to prepay at his substation, one by.

1 5 one, the conversations which he holds from,

that substation to compel such prepayment to bedone as a means of securing the desired lservice, and to permit-payment only at sucht Vtime as the Securing of the service paid fori is made certain.

' these results pertains to My method of securing systems in which av mechanical action is required for the mak-l `ingof a telephone-call, and is a lmethod which consists of locking means preventing 2,5 a mechanical action nec essary to sending a call, This locking means is adapted to be unlocked by the deposit of a coin or token;

after the unlocking of. the calling means, the sending of a call will render the transmitter willreiund the deposite inoperative, and, if the call beunsuccessful,"

telephone receiver: d coin ortoken; if,-

however, the cuil be successful, the'jtransmitter may be rcstoi'edto usefulness by operating a press-button, accomplishin two ends rst, permitting thecalling telep one patron? to engage in conversation with and, second, passin 2.a, coin or token to the. .coin 40 collector, -thuslcollecting t party,

@Hunting it i@ be returned to the cerca-A the called@ the. deposited of vthe coinV he coin and not tor upon the hanging up ofv the telephone, receiver after the conversation. has been@ finished.

'4,5- My invention isillustrated' in the accomrallying drawings, @which Similar characters refer tqfmlar. several views, and. 'Figure @the coinfcofi lectcrand the associated telcphoneinecha( VView of the Circuit :take plate. l a conversation initiated at this stat1oii,-is :that which is shownfin the i 2 certain contacts of these springs are shown t9- be made. It is seenloy this tht thelsendf "i rcuit `as'l adapted 1 or nous, omo, Assrenoit, BY ivi-EsNnAssrGNMENTs, 'ro Ec'rarc COMPANY,

A' CORPORATION 0F ILLINOIS.

PREPAYMENT spigsriifrroN-TELEPHONE.

ratentedfgpec. 17', 1912.

314,371. Renewed July 10,1912. semaine; 703,739.

another system of' transmitting and receiving speech, A y Referring to Fig. 1, thecoincollecting device audits associated parts arefshown in conjunction with elements ofasubsta'tion 60 equipment of'a type adapted ,to befusedih an automatic exchange. Thefelements cfa subst-ation lequipment of this type'cop erate` to enable the-subscriber to institute acall by turning a handle attached to thefdi'sk 1, 65 which in turn-rotates; the disk 2, fwindin up the mainspring 3.' The disk 4 is a lint in thisV winding, being a disk not attached to the handle of the disk 1, but adapted to. be

turned by the latter through pressure of its i'(0 tooth onthe pin 5. The pawl is adapted to engage this same tooth 'of the 'disk 1, unless prevented from so d'oing'by pressure of the pin 7 against the spring 18, holding the pawl 6 out switch hook 9 is provided with a stud, not' -shown in Fig. 1, but adapted to engage a notch in the disk 2 when, the latter is in its normal position. It results, therefore, that unless the switch hook 9 be depressed, 8 0 the main spring'may not be wound up vand therefore no call may be instituted.` The winding 'of the main spring 3 is succeeded by an operation' of a gear from these drawings, and contacts made by '3 5 wipers driven by the gear train cooperate with central-oiiice mechanism to set up the desired connection. After a conversation' has -been'held and the receiver restored to its hookga normal condition'. results, in ,QO

which a new-winding ofV the mechanism may" i which -it will be `notedthfat the pin 10, of .95

Athe 4pawl l1, is not yet vin the notch 12 of v `the '13.- By electrical or mechanical means this disk 13 is turned far enough at the end ofconversation to enable the pin 1() .to fall intov the notch 12 and'fas a consci90 '.uence contacts are broken between all of tlre ve springs 14, 15, 16, 17 andi-1S; In Fig,

of a call involvesthe turning of the disk ,-4,05 4;. Upon the disk 4, I install the pin 41,

land* upon the base plate 42` I install the stud 43. Upon the-:stud 43, a latch 44, shown yin thedrawings as a gravity latchyis sustainedloosely bythe shouldered screw/4 5;

of such engagement. The .7 5

trainl omitted drawings; in

a"hook projection 4G of the latch 44 is adapted to engage the pin 41 when the latch 44 is iii its normal position of rest; a projection 47 of the latch-part 44 extends into the patli of a deposited coin and 1s adapted to beJ engaged by it,.forming a shelf upon f which the 4coin may rest. This shelf prov jection 47 is adapted to be depressed by the ing afcoin or token to thehook impossible, therefore,

weight' of a deposited coin resting upon it, thus operating the latch-part 44' and lifting "46 out of engagement with the pin 41, .this being the position ofthe lat' h-part 44 as shown in the drawings. It will be for the telephone patron to institute a call by turning the disks 1, 2 and/2t, until after he shall have unlockedethegcalling mechanism by depositoperate properly the A coin chute is provided, consistin'g of two parts: a fixed part 48, having' one 'end accessible to the telephone patron to receive a deposited coin, and a` movable part 49, pivtally'sustained by the studn 50' and shouldered screw 51 and 'normally resting against a fixed stop-pin 52. Vhen the coin or token is deposited in the ixedcliute 48, it .passes bygravity into the i movable chute 49 and rests at the bottom ates.

away to permit the coin to of it, its weight being sustained by the shelf 47iof the latch-part 44, which it oper- The chute 49 has its leave the chute ing forward upon the inclined surface of the shelf 47, but the coin is retained within the'chute 49 -by an obstruction, at the openingr therein, consisting of the bent lower end of the'sliding rod 29.

Having instituted a call and. secured conby roll I 'nectin with the desired line,'the called subwill seid voice currents scriber, answering, to the calling station. By reference to Figs. 3 and 4, it will be seen that. if springs 14, 15 and 16 are all in except for upward'pressure of the stud 19 against the'spring 14, the transmitter T will be short-circuited and the receiver R will be shunted by the resistance 20. The magnitude of the.resistance 20 is such as to enable received speech to ,50, c

`.receiver effectively .substation set, immed therefore, is that thc. calling subscriber may be heard in the receiver R, -while yet not 'great enough to enable that to be used as a magneto telephone transmitter. The condition of the iately upon calling,

hear the response of the called subscriber but will be 'unable to through his transmitter or receiver, because of the closed condition nf a Iby-path labout each. Because of instructions to that effect, Athe calling' subscriber now will press the button2l. This will forcethe slide 22 in its guides,witli two results. First, the tooth 23 of theslide 22 will be engaged by the pinl 24 droppingl into it, thus lowering the shaft '65 25, -which iscOnnected with the pin 2.4 by

front wall cut contact, as would be true th deposited by speak ,toy him either' 'is vretained 'and that, if the call be unsuccessful, the coin.

upward movement of the means of the frame 2G. Removal of pressure from tliebutton 21 will leave it locked against return because of the engagement of 23 and 24, though the spring 27.tends against that engagement to throw the button out ward. The second result of this inward pressure of the button 21 is to rock the angle arm '28, lifting the shaft or sliding' rod 29, and releasing the deposited coin, which then rolls upon the inclined shelf 47 out of the chute 49 and into the deposit channel 53, leading to the coin box or till which forms a part of the coin-collecting device. The sliding rod 29 bears the pin 19, previously described as adapted to move the spring 14.

-The collection of the coin, therefore, accompanied by the locking and holds broken the 14, 15 and 16, thus releasing the transmitter from its short circuit and the receiver from its shunt.. Conversation may now proceed,

of the slide 22, breaks contacts of the springsl and upon its completion the, restoration of tll receiver to the switchhook 9 will cause t e.' itter to press upward the rod 25 .to remove the engagement of 23 and 24 and t0 permit the button 21 to snap outward into its normal position. The conversation thus will have been paid for, and all parts will have been restored to their normal positions of rest.

In case the call for connection is not successful for any reason, Aso that'the ,calling patron has no occasion to operate the pressbutton 21 in order to be able to converse, the deposited coin willv remain in the position shown in Fic. l, and upon the hanging up of the 'telephone receiver, the downward movement of the hook end of the hook lever 9 will cause an upward movement of the back end of the 'hook lever, bearing the projecting pin 54;.this in its upward movement enga "es the projectinglp ofthesprin' 55,att'ache to e movable coin chute 49,111'1 thus the lower end of that.: chute is moved towardthelefa as viewed in Fig. 1. This movement of the coin chute .49, containing drags the deposited coin the shelf 47 sustaining it, into'the auxiliary coin chute or return channel 56, terminating in the return cup 57, `on the .outside of the telephone equipment, where the coin is available for recovery the telephone patron. Thus it is seen that, to institute 4a beyond the edge of y the telephone patron; that, if the call so instituted be successful, the coin by the coin-collecting mechanism,

is refunded to the telephone patron. In the telephone'hook 9, caused" yremoving thetelephone receiver from that hook, the pin 54 in its downward motion, passes the tip of tlielexible springy @5.5, allowing the coin chute 49,v to vrest against and the coin drops l the deposited com,

call, a coin or token must bel 4 a fixed stop-pin. 52. As the'sy'stein is "180 lmatic, and the connection has been broken at z AShould a misinformed or non-informed 423 and prevents an; inwardjmovement of 1 thev slide 22 unless lectedA in the till. Rod 31, carrying ,the catch 30,' will be elevated only the.' position shown at-this'substation. `But a i sulting from takeplace'with the pawl 1'1 `engaging the jdisk2 and also with/,its

mechanical diierence within the telephone f, 'jsetybetween the conversations of a sent and 4 :borneby the pawl 11,

' (server viewing y:",lyvhicli timel only `1s a preceding call 1. shaft 31 to be moved .to `that Vshall be necessary.y

The previously ,Cananea nor a call transmitted during such a holding of the pin 37, as in that position the pawl 6 will engage the shoulder of the disk 1, to which the handle of the device is Adirectly attached.

Having thus described my invention, what I claim as new and desire to secure by United States Letters Iatent is:

1. In a coin-prepayment telephone, selective call-sending means, coin-controlled locking means therefor, and means whereby the downward movement of the telephone switch hook will relock said call-sending means.

2. -Ina coin-prepayment substation teley the central ofice as a response to the deprlession of the switchhook 9, a new call'may be instituted, without regard to whether -the had been successful or unsuc- 'cessfuL person deposit a coin or token and then attempt to d'press the button 21'without having institute a call,--which act would result in without service `being `would be prevented by the engagement of the catch in a notch. other th'an 23 in the slide 22. This second notch faces in the opposite direction from the rod 31, carrying the catch 30, isI elevated. Thus, after the deposit of, a coin or token, a'fcallmustbe duly instituted before 'the coin or token can be col.-

transmitting means, `said speech-transmitting means being rendered inoperative by said call-sending means, locking means for said call-sending means, said locking means being normally ina condition lockingsaid when the disk 2-is ,callsending means but inthe position-shown in Fig. 1, and in that position the-lug 32 engages .the lower end of theshaft 31, so .holding the catch 30 out ofl tlieelide 32 whenever the pawl'll stands in in Fig. .1, which is thev position -permitted by the gear train of the -telephoneset durin avtime of conversation resulting from a ca l instituted by a patron conversation re- 'a call to this. substation will 4and a pressbutto n operable after acall has been sent and operating ,to restore said speech-transmitting means ydition and 3.A In a coin-prepayment telephone, selecf tive call-sending means, speech-transmitting means, said speech-transmitting .means being rendered inoperative lsaid call-sending means, said call-sending means, said locking means being normally in condition locking said pin 10 engaging the notch 12in the 'disk:13. There is thus a influenced by a deposited coin to permit said call-sending means to be operated, and means whereby the downward movement-of the switchhook of the telephone substation will restore said speech-transmitting means part swung toward the ob-` to operative condition andwill relck said Big. 1,*permitting it to slip /1' call-sending means. g 32-and torfall'because not 4revented'. vThis will cause thev 'engageiin the notch in the slide It 'will benoted that the. spring 34 bears against. the rod "3]gholding it normally in o sition y the'lug 32. Thel racket 35 is v'so l'niortised a-zi'eceived call. The, inclined plane 33, is adapted toslide be- ;hind the rod 31when the pawl falls into the notches as described; -In so doing, the rod 131 has itsflower phone, selective call-sending means, a coin channel, locking means for said call-sending means, said`locking means being atuated'to unlock by a coin deposited nel, an extension' coin channel leading into a coin-return cup, and means whereby the downward movement switch hook willnrelease the deposited .coin into the extension coin channel and relock said call-sending means. 7

5. In a Lcoin-prepayment substation telephone, selective ,call-sending means,4 a coin 4 channel, locking means for said call-sending attempt'to secure-succes`` means, said locking vmeans''being actuated siyeconnections without ldepositing more thanone coin, by holdingthe *button 21 de-' pressedwhile turning in successive calls, he

vwould find it? impossible to institute .such

-to'beqengaged by as tol permit the clearthe lug 32 when described `operations will 'make clearthaj; the slide 22 is only freed by 'the' catch() when a call has been instituted, f

proper one -for \itS actuationfz l f .Slionldi a 'patron channel, an extension coi channel leading into a-coin box'for the reception .of earned ,coins, and manually operated means for reauseroi' the engagementof the bent f1 leasing a Adeposited.fc 'rrinto'saidv extension `@of thefsliding rod 29 with the pim/l` coinch'annelz'and forfrlocliin"g said call-send- -Thefnjiainspring could-not be wound". ing meansfr i 4' portie being vin -condition `'wheninfluenced by a deposited coin to permit said call-sending means to be operated,

by the operation .of

locking means fon 4. .In a coin-prepayment Ysubstatirni telein said coin chan to unlock by afcoindeposited lin saidcoin 125 to operative conf to relock said call-sending means.

fes

aoc

callsending means but 'being .in condition l of the telephone iso' , 80 phone, selective call-sending means, speech- 6. In a coin-prep channel, call-sendin means, speech-transmitting means,

said speech-transmitting means being rendered inoperative by the operation of s aid call-sending means, locking means for said call-sending means, said locking means being normally in condition locking said call-sending means but being in sion coin channel, to

means being rendered inoperative by the' operation of said call-sending means, locking means for said call-'sending means, said,

locking means being normally in condition lookin said call-sending means but being m condition when inliuenced by a coin deposited in said coin channel to permit said callsending means to be operated, an extension coin channel leading into a vcoin box for the reception of earned coins, means operable by the calling telephone patron to release a dey posited com into said extension coin channel,

to restore said speech-transmitting means to operative condition, and to relock said callsending means, and locking means copera-ting with said restoring means whereby said speech-transmittingmeans is held in operative condition until the downward movement of the yswitchhook of the telephone substation,

In a coin-prepayment telephone, a callsendng'nechanism, a movable coin channel, alloekinglat'ch for said call-sending mechanism projecting into said coin channel whereby a delposited coin may operate said OC i latch to unl movable coiii channel and on the switchliook whereby the downward movement of the switchhook moves said coin channel to release said` coin from said channel. In a coin-prepayment telephone, a movable coin t .mnnel, ,a call-sending mechanism, a speech transmitter, said transmitter being rendered inoperative by th'e operation ot' said call-sending mechanism, a locking latch for said call-sending mechanism-said locking latch being normally in position locking said call-sending means but being in imlocking position when iniuenced by adeposited coin, and an operative connection between the movable coin channel and the switchhook whereby the downward movement of the s'witchhook'of the telephone subyment telephone, a coin said call-sending mechanism,I and mutually engaging projections on said station will move said coin channel to release a deposited coin and thereby relock said call-sending 'meclianisnL 10. In a coin-prepayment telephone, a selective call-sendiiig mechanism, a movable coin channel, a locking latch for'said callsending mechanism, said locking latch being actuated to unlock by a 'coin deposited in said channel, an extension coin channel leading into a return cup, mutually engaging projections on said movable coin channel and on the switchhook of the telephone substation whereby the downward movement of `the telephone switchhook moves said coin channel to release the deposited coin into said extension coin channel allowing said latch to lock said call-sending mechanism.

11. In a coin-prepayment teleph0ne,a call-sending mechanism, a coin channel, a locking latch for said call-sending mechanism adapted to arrest a coin in its downward movement in said channel and to unlocksaid call-sending mechanism when a 0f earned coins, an robstruction guarding the entrance to said extension channel, and a push button coperating with said obst-ructension coin channel allowing said latch to relock said call-sending mechanism.

In a coin-prepayment telephone, a call-sending mechanism, a speech transmitter, said transmitter being rendered inoperative by the'operation of said call-sending mechanism, a coin channel, a locking latch or said call-sendingmechanism extending in'to' said channel to arrest a com therein,

when influenced by a deposited'coin in its arrested position, a sliding rod adapted to retain a coin in its arrested position, and a press-button operable after a call has been with said sliding rod to releasefa deposited coin allowing said latch tof'relock said call-sending mechanism. 13. In a `coin-prepayment telephone, al coin chute; a call-sending device; a speech transmitter; a shunt for'said speech transmitter; a lock for said call-sending device adaptedto arrest and operable by a coin in said chute to unlock said call-sendingdevice; and means under the control of the telephone user after a call has been sent whereby said shunt is removed from said transmitter, the coin is distributed into the till and said call-sending` device is relocked.'

said chute; means 13G under vthe control of the telephone user after a call'jhasbeen: sent whereby said shunt is removed from said transmitter, the coin is dis tributed into the till andsaidcaII-Sending devi'ce is relocked; and a locking latch for said-meansfjln .operative relation with said {call-sending device whereby said latch is lcontrolled i locksaid means upon y transmitter 4;""a shunt for said speech transoperable by a coinrin said chute to unlock;

i said call-sending mitter; a lock for said call-sending device saidk call-sending device; means under the control of the telephone user after a call has been sent whereby said shunt is removed from said transmitter, the coin is distributedinto the till and said call-sending device is relock'edra locking latch for-said means, an operative connection between said latch and device whereby said latch I is controlled by said callsending device to f transmitter; a shunt for i call-sending` shunt for said speech transmitter; a lock for said callfsending'device operable by a deunlock said-'means uponthe sending,l of a call and during the existence of a coin in the chute; and further means 'whereby said first means is lo ked in its operated condition upon itsy operation -to distribute a coin into thetill.

16. In a coin-prepayment telephone, a coin chute, a call-sending device; a speech said speech transmitter; alockfor said call-sending device operable by a coin in said 'chute to unlock said call-sending device; means under the control of the telephone user after a call has been sent whereby said shunt is removed from ksaid transmitter, the coin is distributed into' the till and said call-sending device is relocked; a locking latch for said means, an

operative connection between said latch and call-sending `:device whereby said latch is controlled by said call-sending device to un lock said means upon the sendingbf a call and, during theexistence of a com 1n the chute; further means cooperating with said first-mentioned' means whereby said firstmeans is locked in' its operated condition upon its actuation to distribute a coin into` the till; and further means coperating with said first-mentioned means and the telephone switchhook whereby said first means is restored by the downward motion of the switchhook 17. In a coin-prepayment telephone, a evice; a speech transmitter; a

posited coin to unlock said call-sending de vice; a press button under' the control of the f '3,3 telephone user after a call has been sent; an

means controlled by saidpress button whereby said shunt is' mittel', theoin is distributed into the till removed` said ,trans and said call-sending device is relocked.

`whereby said transmitter, the coin is distributed into the 18. In a coin-prepayment telephone, a coin chute,l a call-sending device; a speech transmitter; a shunt for said speech transmitter; a lock for said call-sending device operable by a coin to unlock said call-send ing device; an obstruction coperating with saidlock to arresta coin in said chute and controlling said shunt; a press-button under the control of the telephone'user after a call has beenksent; an operative connection bctween said button and said obstruction shunt is removed from said till and said call-sending device is relocked; and a locking latch for said press-button, said latch being controlled by'said call-sending device to unlock said .press-button upon the sending of a call. K

19. In a coin-prepayment telephone, a coin chute; a call-sending device; a speech transmitter; a shunt for said speech ytransmitter; a lock Afor said call-sending device operable by a coin in said chute'to unlock said call-sending device; an obstruction cooperating with said lock to arrest a coin in vsaid. chute and controlling said shunt; a press-button under the control of the telephone user after a call has been sent; an operative connection between said button and said obstruction whereby said shunt is removed from said transmitter, thecoin is distributed into the till and Asaid call-sending device is-relocked; a locking latch for said press-button, said latch beingr controlled by said call-sending device to unlock said pressbutton upon the sending of a call; and a sec-4 ond latch for said press-button in operative relation to the telephone switchhookwhereyby said press-button is locked in its operated condition upon its actuation to release a coin until the switchhook is restored,l to its n'ormal position.

20. In a coin-prepayment telephone, va

coin chute; a call-sending device; a speech' transmitter; a shunt for said speech transmitter; a lock for said call-sending device operable by a coin in said chute to unlock l said call-sending device; a branch'ccin chan; nel; anobstruction guarding said branch channel and controlling said shunt; a pressbutton under the control otthc telephone user after'a call has been sent; an operative connection between said button and said obstruction wherebv said shunt is removed from said transmitter, the coinis distributed into said branch channel allowing said call-sending device to be reiocked; al locking latch oizsaid press-button. said latch being controlled by` said call-sending device to unlock saidpressbutton uponthe sending of a 1% channel; and means, in operative connection `with said second latch and the telephone switchhook whereby said press-button is restored by the downward motion of the switchhook.

2l. In a coin-prepayment telephone, callsending means; a lock for said call-sending means; a speech transmitter; disabling 'means for said speech transmitter; a coin chute; a return coir channel; distributing means for a. coin 1n said chute whereby a com may be d1str1buted into said ret-urn channel; and means whereby, 'by the down-v ward movement of the telephone hook, a.

coin is distributed from its position of suspense into said return channel, said lock is operated to relock said call-sending means, and said disabling means is operated to restore the operative condition of said transmitter.

22. In a coin-prepayment telephone, a call-sending device; a lock for said callsending device; a speech transmitter; a shuntA for said speech transmitter; a coin chute; a return coin channel leading to a coin pocket where a coin will be accessible by a telephone user; distributing means for whereby a coin may be distributed into said return channel; and means whereby, by the downward movement of the'telephone hook, a. coin is distributed from its position of suspense into said return coin channel, said lock is operated to relock. said call-sending device and' said shunt 1s removed from said transmitter.

y In a coin-prepayment telephone, a call-sending device; a lock for said call- `sending device; a speech transmitter; a shunt for said speech transmitter; a movable coin chute; a return coin channel leading to a return pocket where a coin will be accessible by a telephone user; and means whereby, by the downward movement of the telephone hook, said movable coin chute is moved into registrywith said return coin channel, a coin is distributed from its position of suspense into said return coin channel, said lock is operated to relock said callsending device and said shunt is removed from said transmitter.

24. In "a coin-prepayment telephone, a speech transmitter; disabling means for said speech transmitter; call-sendin vmeans; means normally locking said calsending means but operable by a coin for unlocking the same; a coin chute; distributing means for releasing a coin from said chute; a pressbutton operative to release a coin from said chute allowing said call-sending means to be relockedandcoperatin with said disabling means to hold said speec -transmitter operative, and locking means for said press-- button.

In a coin-prepayment telephone, a speech transmitter; a shunt for said speech transmit-ter; a call-sending device; a normally loc-king coin-released lock therefor; a'-65 coin chute; an obstruct-ion holding a coin therein; a press-button operating to withdraw said obstruction allowing said -lock to relocksaid call-sending device; means controlled by said press-button to remove said shunt from the transmitter; and a locking latch for said press-button. l

26. In a colnprepayment telephone, a coin chute; a deposit channel an obstruction for said channel; controlling means under control of the telephone user for removing said obstruction; call-sending means; a lock for said call-sending means and operated to unlock said call-sending means when a coin is deposited in said coin chute; and locking means for said oontrolling means operatively. connected to and actuated by said call-sending means to unlock said controlling means at the completion of the sending of a call. 85

27. In a coin-prepayment telephone, a coin chute; a deposit channel; a press-button under control of the telephone user for releasing a. coin into saidchannel'; a call-sending device; a lock for said call-sending device operative to unlock'. said call-sendingdevice when a coin is deposited in said coin channel; a locking latch for said press-button controlled byv said call-sending device to unlock said press-button.

In a coin-prepayment telephone, a coin chute; a .deposit channel; means for distributing a com into said channel, said control means accessible by the telephone user; locking means for said control means whereby said control means is locked in, its operated position; and means for oper ting said locking means to unlock said control means upon the downward movement of the telephone switchhook. I

29. In a coin-prepayment telephone, a call-sending device; a coin chute; a lock for said call-sending. device normally holding said device locked and operating to unlock said device when actuated by a coin in said chute; a returnchannel for said coin whereby the coin may be conducted fromv said coin channel to a position where it will be accessible bythe telephone user; and means 1 15 operated by a downward movement of the telephone hook and operating to distribute the coin into said return channel and to relock said call-sending device.

Signed by State of Ohio, in the presence of two witnesses.

1 GEORGE W. LORIMER. Witnesses:

G'EoRcE A. VANGIER,

J UDD L. PALMER.

me at Piqua, lcounty of Miami, 120 

